Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /lamp/www/quantix/vendor/guzzlehttp/psr7/tests/UriNormalizerTest.php:15 Stack trace: #0 {main} thrown in /lamp/www/quantix/vendor/guzzlehttp/psr7/tests/UriNormalizerTest.php on line 15